2001 Honda Accord LX 4 Cyl gives very poor gas milage.What could be the reason??

Hi

I have a 2001 Honda Accord LX 4 cyl, automatic transmission with
160,000 Km or 100,000 miles.

It hardly gives me 19 MPG in city and 27 MPG on highway.This is very
low for a 4 cyl car. A V6 gives better mileage than this.I am not
using air conditioning.

I am using Mobil 1 Synthetic 5 W30.

I flushed the transmission twice. Transmission is silk smooth without
any problems.

Changed spark plugs to NGK Iridium plugs.

Changed air filter.

Car has brand new tires.

Changed water pump and timing belt at 142,000 km.

Car runs excellent both in city and highway, even at 160 km/hr on
highway.

CAR HAS BEEN SERVICED AT THE HONDA DEALERSHIP SINCE NEW

All mechanical systems are working fine. Why is it performing so
poorly on gas.

WHAT CAN BE DONE TO IMPROVE GAS MILAGE. IS THERE ANY DIAGNOSIS
TECHNIQUE AT THE DEALERSHIP THAT CAN FIGURE OUT THIS PROBLEM.

Any suggestions/help will be highly appreciated SPECIALLY FROM THOSE
HONDA FANS.

 

dude, my 89 1500cc civic only gives me 25mpg at that speed. but it
gives me 41mpg if i can keep my foot off the gas enough to stay legal.

yeah, leave the lead boots at home.

 

Try changing the O2 Sensor(s). A poor O2 sensor killed the mileage on my
Accord.

G-Man

 

What about your tires? What's the rolling resistance?

 

Take the tire inflation up to the "hard" level, of about 36PSI.

Put a plastic cup full to the brim of water on the dash, and drive
without spilling it. After you start to drive your daily commute with
the techniques you learn from that practice, you will get phenominal
mileage!

Check out that O2 sensor. Defective ones will kill mileage. Gigo.
Garbage in= garbage out is a computer term, and aptly applies to
automobile computers.